#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<math.h>
int main(void)
{
	int height = 0, weight = 0;
	double BMI = 0.0;
	scanf("%d %d", &weight, &height);
	BMI = weight / pow(height/100.0, 2);
	printf("%.2lf", BMI);
	return 0;
}